In the U.S. state of California, a congestion management agency (abbreviated CMA) is a county-level government agency responsible for a comprehensive transportation improvement program that reduces

traffic congestion Traffic congestion is a condition in transport that is characterized by slower speeds, longer trip times, and increased vehicular queueing. Traffic congestion on urban road networks has increased substantially since the 1950s. When traffic de ...

and reduces transportation-related air pollution through local

land-use planning Land use planning is the process of regulating the use of land by a central authority. Usually, this is done to promote more desirable social and environmental outcomes as well as a more efficient use of resources. More specifically, the goals ...

. Under the

California State Legislature The California State Legislature is a bicameral state legislature consisting of a lower house, the California State Assembly, with 80 members; and an upper house, the California State Senate, with 40 members. Both houses of the Legisla ...

to implement Proposition 111 (also known as the Traffic Congestion Relief and Spending Limitation Act of 1990), each county with 50,000 or more residents in other words, any county required to have a metropolitan planning organization under federal law must also designate a local government agency to develop a congestion management program (CMP) or forfeit its share of state

gasoline tax A fuel tax (also known as a petrol, gasoline or gas tax, or as a fuel duty) is an excise tax imposed on the sale of fuel. In most countries the fuel tax is imposed on fuels which are intended for transportation. Fuels used to power agricultural ...

revenues. In 1996, Assembly Bill 2419 allowed counties to opt out of the CMP requirement by implementing an alternative mechanism for congestion management and made the CMP voluntary for counties with fewer than 200,000 residents. San Diego County at one point opted out of the CMP in favor of a regional fee applied to new developments.

List of congestion management agencies

Each county designates a local government agency as its CMA. The designated agencies are a variety of public transportation districts, joint powers authorities, and

councils of governments Councils of governments (CoGs—also known as regional councils, regional commissions, regional planning commissions, and planning districts) are regional governing and/or coordinating bodies that exist throughout the United States. CoGs are norma ...

. * Alameda County: Alameda County Transportation Commission *

Contra Costa County ) of the San Francisco Bay , subdivision_type = Country , subdivision_name = United States , subdivision_type1 = State , subdivision_name1 = California , subdivision_type2 ...

: Contra Costa Transportation Authority * Fresno County:

Fresno Council of Governments Fresno () is a major city in the San Joaquin Valley of California, United States. It is the county seat of Fresno County and the largest city in the greater Central Valley region. It covers about and had a population of 542,107 in 2020, m ...

Imperial County Imperial Count (german: Reichsgraf) was a title in the Holy Roman Empire. In the medieval era, it was used exclusively to designate the holder of an imperial county, that is, a fief held directly ( immediately) from the emperor, rather than from ...

: * Kern County:

Kern Council of Governments KERN (1180 AM) is a commercial radio station licensed to Wasco-Greenacres, California, and serving the Bakersfield metropolitan area. The station is owned by American General Media. The radio studios and offices are in the American General Medi ...

Kings County Kings County or King's County may refer to: Places Canada *Kings County, New Brunswick *Kings County, Nova Scotia *Kings County, Prince Edward Island ** King's County (electoral district), abolished in 1892 Ireland * County Offaly, formerly call ...

: *

Los Angeles County Los Angeles County, officially the County of Los Angeles, and sometimes abbreviated as L.A. County, is the most populous county in the United States and in the U.S. state of California, with 9,861,224 residents estimated as of 2022. It is the ...

: Los Angeles County Metropolitan Transportation Authority *

Madera County Madera County (), officially the County of Madera, is a county at the geographic center of the U.S. state of California. As of the 2020 census, the population was 156,255. The county seat is Madera. Madera County comprises the Madera, CA Metr ...

: *

Marin County Marin County is a county located in the northwestern part of the San Francisco Bay Area of the U.S. state of California. As of the 2020 census, the population was 262,231. Its county seat and largest city is San Rafael. Marin County is acros ...

Transportation Authority of Marin Marin County is a county located in the northwestern part of the San Francisco Bay Area of the U.S. state of California. As of the 2020 census, the population was 262,231. Its county seat and largest city is San Rafael. Marin County is acros ...

* Merced County: *

Monterey County Monterey County ( ), officially the County of Monterey, is a county located on the Pacific coast in the U.S. state of California. As of the 2020 census, its population was 439,035. The county's largest city and county seat is Salinas. Montere ...

Transportation Agency for Monterey County Transport (in British English), or transportation (in American English), is the intentional movement of humans, animals, and goods from one location to another. Modes of transport include air, land ( rail and road), water, cable, pipel ...

* Napa County: Napa Valley Transportation Authority *

Orange County Orange County most commonly refers to: *Orange County, California, part of the Los Angeles metropolitan area Orange County may also refer to: U.S. counties *Orange County, Florida, containing Orlando *Orange County, Indiana *Orange County, New ...

: Orange County Transportation Authority * Placer County:

Placer County Transportation Planning Agency Placer may refer to one of the following: * Placer deposit *Placer sheep *Placer mining * Placer (geography), a submerged bank or reef. * Placer, rugby league football role. * Placer, a job title in the Pottery industry. Geographical names: * Pl ...

* Riverside County:

Riverside County Transportation Commission The Riverside County Transportation Commission (RCTC) is the County Transportation Commission (a subdivision of the six-county Southern California Association of Governments metropolitan planning organization) for Riverside County, California, ...

Sacramento County Sacramento County () is a county located in the U.S. state of California. As of the 2020 census, the population was 1,585,055. Its county seat is Sacramento, which has been the state capital of California since 1854. Sacramento County is the ...

Sacramento Area Council of Governments ) , image_map = Sacramento County California Incorporated and Unincorporated areas Sacramento Highlighted.svg , mapsize = 250x200px , map_caption = Location within Sacramento C ...

* San Benito County: * San Bernardino County:

San Bernardino County Transportation Authority The San Bernardino County Transportation Authority (SBCTA) is the successor to San Bernardino Associated Governments which is responsible for administering the Measure I half-cent tax which San Bernardino County voters passed most recently in 200 ...

* San Diego County:

San Diego Association of Governments The San Diego Association of Governments (abbreviated SANDAG) is an association of local San Diego County governments. It is the metropolitan planning organization for the County, with policy makers consisting of mayors, councilmembers, and County ...

* San Francisco:

San Francisco County Transportation Authority The San Francisco County Transportation Authority (SFCTA) is a state chartered sub-regional transportation planning and programming agency for San Francisco County. SFCTA is a separate legal entity from the San Francisco Municipal Transportation ...

* San Joaquin County: San Joaquin Council of Governments * San Luis Obispo County: none since 1996 * San Mateo County: City/County Association of Governments of San Mateo County * Santa Barbara County:

Santa Barbara County Association of Governments Santa Barbara County, California, officially the County of Santa Barbara, is located in Southern California. As of the 2020 United States Census, 2020 census, the population was 448,229. The county seat is Santa Barbara, California, Santa Barbara ...

* Santa Clara County: Santa Clara Valley Transportation Authority * Santa Cruz County:

Santa Cruz County Regional Transportation Commission Santa Claus, also known as Father Christmas, Saint Nicholas, Saint Nick, Kris Kringle, or simply Santa, is a legendary figure originating in Western Christian culture who is said to bring children gifts during the late evening and overnight ...

* Shasta County:

Shasta County Regional Transportation Planning Agency Shasta or Shastan may refer to: Native American * Shasta Costa, a people group native to southwestern Oregon * Shasta language, extinct language of the Shasta people * Shasta people, a people group native to northern California and southern Ore ...

* Solano County:

Solano Transportation Authority Solano may refer to: Places * California State Prison, Solano * San Francisco Solano, a town in Almirante Brown Partido, Argentina * Solano Avenue, a street in Berkeley and Albany, California, in the United States * Solano castle, a colonial cas ...

* Sonoma County: Sonoma County Transportation Authority *

Stanislaus County , image_skyline = , image_caption = Images, from top down, left to right: Modesto Arch, Knights Ferry's General Store, a view of the Tuolumne River from Waterford , image_flag = , i ...

Stanislaus Council of Governments Stanislav and variants may refer to: People * Stanislav (given name), a Slavic given name with many spelling variations (Stanislaus, Stanislas, Stanisław, etc.) Places * Stanislav, a coastal village in Kherson, Ukraine * Stanislaus County, Cal ...

Sutter County Sutter County is a county located in the U.S. state of California. As of the 2020 census, the population was 99,633. The county seat is Yuba City. Sutter County is included in the Yuba City, CA Metropolitan Statistical Area as well as the Sacra ...

: * Tulare County:

Tulare County Association of Governments Tulare may refer to: * , a United States Navy attack cargo ship in commission from 1956 to 1986 Places Serbia * Tulare, Medveđa * Tulare (Prokuplje) United States * Tulare, California * Tulare, South Dakota * Tulare County, California * Tulare ...

* Ventura County:

Ventura County Transportation Commission The Ventura County Transportation Commission (VCTC) is the public sector transportation planning body for Ventura County, California. The VCTC oversees highway, bus, aviation, rail and bicycle activity and controls the use of government funds for ...

* Yolo County:

Yolo County Transportation District Yolobus provides public transportation throughout Yolo County, California and into downtown Sacramento, western Sacramento County and northeastern Solano County. The Yolobus fleet consists of 50 compressed natural gas (CNG) buses and 10 paratran ...

* Yuba County:

List of congestion management agencies

See also

References

Further reading